CN218841863U - Cascaded multilayer sewage treatment plant - Google Patents
Cascaded multilayer sewage treatment plant Download PDFInfo
- Publication number
- CN218841863U CN218841863U CN202222691557.7U CN202222691557U CN218841863U CN 218841863 U CN218841863 U CN 218841863U CN 202222691557 U CN202222691557 U CN 202222691557U CN 218841863 U CN218841863 U CN 218841863U
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- tank
- primary sedimentation
- square
- grid
- treatment plant
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- 239000010865 sewage Substances 0.000 title claims abstract description 63
- 239000002699 waste material Substances 0.000 claims abstract description 50
- 238000003860 storage Methods 0.000 claims abstract description 29
- 238000004062 sedimentation Methods 0.000 claims abstract description 28
- 238000005273 aeration Methods 0.000 claims abstract description 27
- 239000000945 filler Substances 0.000 claims abstract description 6
- 238000004065 wastewater treatment Methods 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 13
- 210000005056 cell body Anatomy 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 13
- 238000001914 filtration Methods 0.000 description 6
- 230000000717 retained effect Effects 0.000 description 6
- 239000002893 slag Substances 0.000 description 6
- 238000004140 cleaning Methods 0.000 description 5
- 239000012535 impurity Substances 0.000 description 5
- 239000002351 wastewater Substances 0.000 description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 239000003673 groundwater Substances 0.000 description 2
- 239000010842 industrial wastewater Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000013049 sediment Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 239000003403 water pollutant Substances 0.000 description 2
- 208000034699 Vitreous floaters Diseases 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010170 biological method Methods 0.000 description 1
- 239000010840 domestic wastewater Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000004162 soil erosion Methods 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
Images
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Landscapes
- Biological Treatment Of Waste Water (AREA)
Abstract
The utility model discloses a stepped multi-layer sewage treatment device, which comprises an enclosing wall, wherein the bottom of the enclosing wall is respectively provided with a grid tank, a primary sedimentation tank and an aerobic tank through a ladder frame, the grid tank and the primary sedimentation tank are mutually communicated through a main switch valve, the primary sedimentation tank and the aerobic tank are mutually communicated through an auxiliary switch valve, and biological fillers are arranged inside the aerobic tank; the square-shaped aeration structure is arranged at the top end of the aerobic tank; the grating main body is arranged on one side of the bottom of the grating tank and the bottom of the primary sedimentation tank. The utility model discloses initiatively promote the waste residue in the waste material storage frame, until the waste material is promoted to the surface of water top, the staff can salvage, clear up the waste residue in the waste material storage frame fast this moment, provides convenient for the staff to the clearance of cell body, maintenance operation, reduces the clearance activity duration of cell body to hoisting device's sewage treatment efficiency.
Description
Technical Field
The utility model relates to a sewage treatment technical field specifically is a cascaded multilayer sewage treatment plant.
Background
Sewage may be defined as a waste-laden liquid or water mixed with ground water, surface water, snow storms, etc. discharged from residential, institutional, commercial or industrial areas from the point of view of the source of the sewage. Sewage is classified into many categories, and there are many techniques and processes for reducing the environmental impact of sewage accordingly. According to the source of the sewage, the sewage can be divided into four types:
the first type: industrial wastewater, wastewater from manufacturing mining and industrial production activities, including run-off leachate from industrial or commercial storage, processing, and other wastewater that is not domestic wastewater.
The second type: domestic sewage from a residence, office building, office or the like; sanitary sewage; sewage water, including industrial waste water mixed in domestic sewage water in a sewer system. Garbage, various atmospheric particulates, and the like, which enter the water environment through surface runoff, soil erosion, farmland drainage, and the like. The method has the characteristics of dispersity, concealment, randomness, latency, accumulation, ambiguity and the like, so that the method is difficult to monitor and quantify, and the difficulty of research, prevention and control is high. Water pollutants (Waterpollutant) are the substances that cause pollution when discharged into a body of water.
In the third category: commercial sewage, non-toxic, harmless sewage from commercial facilities with certain components exceeding domestic sewage. Such as restaurant sewage. Laundry sewage, animal feeding sewage, sewage generated by a hair salon, and the like.
The fourth type: surface runoff, water from rain, snow, highway drainage, water from urban and industrial areas, and the like, which does not seep into the soil, enters groundwater along streets and lands.
The stepped sewage treatment device is used in sewage treatment, and belongs to a method for sewage physical treatment, gratings are mainly arranged in a plurality of stepped tank bodies, gratings with different specifications in each step remove large granular substances and large granular impurities in sewage, the continuous operation of a subsequent treatment device is guaranteed, grating slag is periodically and manually treated, the sewage enters an adjusting tank after removing block floaters, a submersible sewage pump is arranged in the adjusting tank to lift the sewage, a stirring system is arranged in the adjusting tank to stir so as to prevent dirt from precipitating, the treated sewage is treated by a chemical method and a biological method, however, the sewage impurities are directly retained in the stepped tank bodies after the sewage impurities are retained by the gratings in the conventional stepped multi-layer sewage treatment device, the later-stage grating slag needs manual periodic treatment, time and labor are wasted in the grating slag salvaging process, the difficulty is brought to workers for daily maintenance operation, the downtime of the device is long in the grating slag cleaning process, and the sewage treatment efficiency of the device is influenced.
Disclosure of Invention
An object of the utility model is to provide a cascaded multilayer sewage treatment plant to provide the device later stage in solving above-mentioned background art and need artifical periodic treatment bars problem of sediment, the consuming time and the power of process is salvaged to bars sediment.
In order to achieve the above object, the utility model provides a following technical scheme: a stepped multi-layer wastewater treatment plant comprising:
the device comprises a fence, wherein a grating tank, a primary sedimentation tank and an aerobic tank are respectively arranged at the bottom of the fence through a ladder frame, the grating tank and the primary sedimentation tank are mutually communicated through a main switch valve, the primary sedimentation tank and the aerobic tank are mutually communicated through an auxiliary switch valve, and biological fillers are arranged in the aerobic tank;
the square-shaped aeration structure is arranged at the top end of the aerobic tank;
the grating main body is arranged on one side of the bottoms of the grating tank and the primary sedimentation tank;
the right-angle frame is respectively arranged on the back surfaces of the grating tank and the primary sedimentation tank through the chain wheel lifting assembly;
waste material storage frame, waste material storage frame sets up respectively in the bottom in grid pond and primary sedimentation pond, the top of waste material storage frame and the top fixed connection of right angle frame.
Preferably, the square-shaped aeration structure comprises a square-shaped aeration pipe, the square-shaped aeration pipe is erected at the top end of the aerobic tank, and an air inlet pipe which is connected with the air outlet end of the external aeration pump is installed on one side of the top end of the square-shaped aeration pipe.
Preferably, a plurality of groups of exhaust pipes which are equidistant are arranged at the bottom end of the square-shaped aeration pipe, and the bottom ends of the exhaust pipes extend into the aerobic tank.
Preferably, the sprocket promotes the subassembly and includes support piece, rotary driving spare, sprocket lifting member and lift guide, support piece includes the projection of fixing on grid Chi Waibi, the one end that the grid pond outer wall was kept away from to the projection is fixed with the rectangle support, rotary driving spare is installed at the back of rectangle support, sprocket lifting member installs the surface at the rectangle support, sprocket lifting member connects through lift guide and right-angle frame.
Preferably, the rotary driving piece is for installing the servo motor at the rectangular support back to and rotate the pivot of installing at rectangular support surface both ends, servo motor's output and one end fixed connection of a set of pivot wherein, the sprocket promotes the piece for installing two sets of the sprocket main part on pivot top is two sets of install the chain between the sprocket main part, the one end on chain surface is fixed with the slip table, be fixed with U type seat on the outer wall of slip table one side, the outer wall fixed connection of U type seat outer wall and right angle frame.
Preferably, the lifting guide comprises a guide rail fixed on the surface of the rectangular support, and the sliding table is slidably mounted on the guide rail.
Compared with the prior art, the beneficial effects of the utility model are that: this cascaded multilayer sewage treatment plant is through being provided with the structure of mutually supporting such as waste material storage frame and enclosure, the staff utilizes the dredge pump to send pending sewage into the grid pond earlier, the grid pond, just sink pond and good oxygen pond and filter waste water in proper order, deposit, refilter and biological purification treatment, thereby accomplish the processing operation of sewage, the later stage passes through sprocket lifting unit and drives right angle frame, waste material storage frame goes upward, the waste residue that is detained in waste material storage frame this moment is promoted, be promoted to the surface of water top until the waste material, the staff can be salvaged waste residue in the waste material storage frame fast this moment, the clearance, for the clearance of staff to the cell body, it is convenient to maintain the operation, reduce the clearance activity duration of cell body, thereby hoisting device's sewage treatment efficiency.
Drawings
FIG. 1 is a schematic view of the front cross-sectional structure of the enclosure of the present invention;
FIG. 2 is a schematic side view of the present invention;
FIG. 3 is an enlarged schematic view of the structure at A in FIG. 2 according to the present invention;
FIG. 4 is a schematic side view of the right-angle frame and the waste salvaging frame of the present invention;
FIG. 5 is a schematic view of the three-dimensional structure of the clip-shaped aeration pipe of the present invention;
in the figure: 1. a wall; 101. a ladder frame; 2. a grid tank; 3. a primary sedimentation tank; 4. an aerobic tank; 5. a main switch valve; 6. a secondary on-off valve; 7. a grill main body; 8. a clip-shaped aeration pipe; 801. an air inlet pipe; 802. an exhaust pipe; 9. a convex column; 10. a rectangular bracket; 1001. a rotating shaft; 1002. a sprocket body; 1003. a chain; 1004. a servo motor; 1005. a guide rail; 1006. a sliding table; 1007. a U-shaped seat; 11. a right-angle frame; 12. a waste storage rack.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-5, the present invention provides an embodiment: a stepped multi-layer sewage treatment device comprises an enclosing wall 1, wherein a grid tank 2, a primary sedimentation tank 3 and an aerobic tank 4 are respectively arranged at the bottom of the enclosing wall 1 through a stepped frame 101;
the grating tank 2 and the primary sedimentation tank 3 are communicated with each other through a main switch valve 5, and the grating main body 7 is arranged on one side of the bottoms of the grating tank 2 and the primary sedimentation tank 3;
a worker firstly sends sewage to be treated into the grid tank 2 by using the sewage discharge pump, the sewage is treated by using the grid main body 7 in the grid tank 2, impurities are retained in the grid tank 2, and the sewage after primary filtration enters the primary sedimentation tank 3 in the next step through the main switch valve 5;
the primary sedimentation tank 3 and the aerobic tank 4 are communicated with each other through an auxiliary switch valve 6, biological filler is arranged in the aerobic tank 4, a grid main body 7 in the primary sedimentation tank 3 carries out secondary filtration on sewage, the sewage is precipitated, and the sewage after secondary filtration and precipitation enters the aerobic tank 4 through the auxiliary switch valve 6;
the biological filler in the aerobic tank 4 decomposes and oxidizes organic matters in a dissolved or colloidal state in the sewage into stable inorganic substances, so that the sewage is purified, and the sewage treatment operation is further completed;
the device comprises a right-angle frame 11, a waste storage frame 12 and a waste storage frame 12, wherein the right-angle frame 11 is respectively arranged on the back surfaces of a grid pool 2 and a primary sedimentation pool 3 through a chain wheel lifting assembly, the waste storage frame 12 is respectively arranged at the bottoms of the grid pool 2 and the primary sedimentation pool 3, and the top end of the waste storage frame 12 is fixedly connected with the top end of the right-angle frame 11;
when workers need to salvage waste materials in the grating tank 2 or the primary sedimentation tank 3, taking waste residues in the grating tank 2 as an example, the workers start the chain wheel lifting assembly to work, so that the chain wheel lifting assembly drives the right-angle frame 11 and the waste material storage frame 12 to move upwards;
the waste residues retained in the waste storage rack 12 are lifted until the waste materials are lifted above the water surface, and at the moment, workers can quickly salvage and clean the waste residues in the waste storage rack 12, so that the cleaning and maintenance operation of the pond body by the workers is convenient and fast, and the cleaning operation time of the pond body is shortened;
the chain wheel lifting assembly comprises a supporting piece, a rotary driving piece, a chain wheel lifting piece and a lifting guide piece, wherein the supporting piece comprises a convex column 9 fixed on the outer wall of the grid pool 2, a rectangular support 10 is fixed at one end, away from the outer wall of the grid pool 2, of the convex column 9, the rotary driving piece is installed on the back face of the rectangular support 10, the chain wheel lifting piece is installed on the surface of the rectangular support 10, and the chain wheel lifting piece is connected with the right-angle frame 11 through the lifting guide piece;
the rotary driving part is a servo motor 1004 arranged on the back of the rectangular support 10 and rotating shafts 1001 rotatably arranged at two ends of the surface of the rectangular support 10, the output end of the servo motor 1004 is fixedly connected with one end of one group of rotating shafts 1001, the chain wheel lifting part is a chain wheel main body 1002 arranged at the top ends of the two groups of rotating shafts 1001, a chain 1003 is arranged between the two groups of chain wheel main bodies 1002, and the servo motor 1004 drives the rotating shafts 1001 and the chain wheel main bodies 1002 to rotate in the process of lifting the rectangular rack 11, the waste storage rack 12 and waste residues, namely the chain wheel main bodies 1002 drive the chain 1003 to rotate;
a sliding table 1006 is fixed at one end of the surface of the chain 1003, a U-shaped seat 1007 is fixed on the outer wall of one side of the sliding table 1006, and the outer wall of the U-shaped seat 1007 is fixedly connected with the outer wall of the right-angle frame 11;
the chain 1003 drives the sliding table 1006, the U-shaped seat 1007, the right-angle frame 11 and the waste storage frame 12 to integrally move upwards until the waste residues are lifted above the water surface of the tank body;
the lifting guide part comprises a guide rail 1005 fixed on the surface of the rectangular bracket 10, the sliding table 1006 is slidably mounted on the guide rail 1005, and the guide rail 1005 is used as the moving guide of the sliding table 1006, so that the phenomena of shaking and instability of the right-angle frame 11 and the waste storage frame 12 caused by overweight waste slag in the lifting process are reduced;
the device comprises a square-shaped aeration structure, a square-shaped aeration structure and a control system, wherein the square-shaped aeration structure is arranged at the top end of an aerobic tank 4 and comprises a square-shaped aeration pipe 8, the square-shaped aeration pipe 8 is erected at the top end of the aerobic tank 4, and an air inlet pipe 801 which is mutually connected with the air outlet end of an external aeration pump is arranged on one side of the top end of the square-shaped aeration pipe 8;
equidistant a plurality of groups of blast pipes 802 are installed to the bottom of returning shape aeration pipe 8, the bottom of blast pipe 802 extends to the inside of good oxygen pond 4, 4 in-process of purifying waste water in good oxygen pond, the staff opens the aeration pump, make the air enter into returning shape aeration pipe 8 through intake pipe 801, and make the air through a plurality of groups of blast pipes 802 reposition of redundant personnel drum into good oxygen pond 4, thereby increase the area of contact of biofilm carrier and air, make the biofilm carrier fully react with waste water.
When the sewage treatment device is used, firstly, a worker firstly utilizes the sewage discharge pump to send the sewage to be treated into the grating tank 2, the material is treated by the grid main body 7 in the grid pool 2, the impurities are retained in the grid pool 2, the sewage after primary filtration enters a primary sedimentation tank 3 in the next step through a main switch valve 5, a grid main body 7 in the primary sedimentation tank 3 carries out secondary filtration on the sewage, and the sewage is precipitated, the sewage after secondary filtration and precipitation enters the aerobic tank 4 through the auxiliary switch valve 6, the biological filler in the aerobic tank 4 decomposes and oxidizes the organic matters in a dissolved or colloidal state in the sewage into stable inorganic matters to purify the sewage, further completing the sewage treatment operation, when workers need to salvage the waste materials in the grating tank 2 or the primary sedimentation tank 3, taking the waste residue in the grating tank 2 as an example, the worker starts the chain wheel lifting assembly to work, so that the chain wheel lifting assembly drives the right-angle frame 11 and the waste storage frame 12 to go upwards, the waste residue retained in the waste storage frame 12 is lifted until the waste material is lifted to the position above the water surface, at the moment, the worker can quickly salvage and clean the waste residue in the waste storage frame 12, the cleaning and maintenance operation of the worker on the tank body is convenient and fast, the cleaning operation time of the tank body is reduced, and the sewage treatment efficiency of the device is improved, in the process of lifting the right-angle stand 11, the waste storage rack 12 and the waste slag, the servo motor 1004 drives the rotating shaft 1001 and the chain wheel main body 1002 to rotate first, the chain wheel main body 1002 drives the chain 1003 to rotate, so that the chain 1003 drives the sliding table 1006, the U-shaped seat 1007, the right-angle frame 11 and the waste storage frame 12 to integrally move upwards until waste residues are lifted out of the water surface of the tank body.
It is obvious that the above described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular is intended to include the plural unless the context clearly dictates otherwise, and it should be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of features, steps, operations, devices, components, and/or combinations thereof.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The utility model provides a cascaded multilayer sewage treatment plant which characterized in that includes:
the device comprises a fence (1), wherein the bottom of the fence (1) is respectively provided with a grid tank (2), a primary sedimentation tank (3) and an aerobic tank (4) through a ladder frame (101), the grid tank (2) and the primary sedimentation tank (3) are mutually communicated through a main switch valve (5), the primary sedimentation tank (3) and the aerobic tank (4) are mutually communicated through an auxiliary switch valve (6), and biological filler is arranged in the aerobic tank (4);
the square-shaped aeration structure is arranged at the top end of the aerobic tank (4);
the grating main body (7), the grating main body (7) is arranged on one side of the bottom of the grating tank (2) and the primary sedimentation tank (3);
the right-angle frame (11) is respectively arranged on the back surfaces of the grating tank (2) and the primary sedimentation tank (3) through a chain wheel lifting assembly;
waste material storage rack (12), waste material storage rack (12) set up respectively in the bottom of grid pond (2) and just heavy pond (3), the top of waste material storage rack (12) and the top fixed connection of right angle frame (11).
2. The stepped, multi-layered wastewater treatment plant of claim 1, wherein: the square-shaped aeration structure comprises square-shaped aeration pipes (8), the square-shaped aeration pipes (8) are erected on the top end of the aerobic tank (4), and an air inlet pipe (801) connected with the air outlet end of an external aeration pump is installed on one side of the top end of the square-shaped aeration pipes (8).
3. The stepped, multi-layered wastewater treatment plant of claim 2, wherein: a plurality of groups of exhaust pipes (802) which are arranged at equal intervals are arranged at the bottom end of the square-shaped aeration pipe (8), and the bottom ends of the exhaust pipes (802) extend into the aerobic tank (4).
4. The stepped, multi-layered wastewater treatment plant of claim 1, wherein: sprocket lifting means includes support piece, rotary driving spare, sprocket lifting member and lift guide, support piece is including fixing projection (9) on grid pond (2) outer wall, the one end that grid pond (2) outer wall was kept away from in projection (9) is fixed with rectangle support (10), rotary driving spare is installed at the back of rectangle support (10), sprocket lifting member installs the surface at rectangle support (10), and sprocket lifting member connects through lift guide and right angle frame (11).
5. The stepped, multi-layered wastewater treatment plant of claim 4, wherein: rotatory driving piece is for installing servo motor (1004) at the back of rectangular support (10) to and rotate and install pivot (1001) at rectangular support (10) surface both ends, the output of servo motor (1004) and one end fixed connection of one of them a set of pivot (1001), the sprocket lifting member is for installing two sets of sprocket main part (1002) on pivot (1001) top are two sets of install chain (1003) between sprocket main part (1002), the one end on chain (1003) surface is fixed with slip table (1006), be fixed with U type seat (1007) on the outer wall of slip table (1006) one side, the outer wall fixed connection of U type seat (1007) outer wall and right angle frame (11).
6. The stepped, multi-layer wastewater treatment plant of claim 5, wherein: the lifting guide piece comprises a guide rail (1005) fixed on the surface of the rectangular support (10), and the sliding table (1006) is slidably mounted on the guide rail (1005).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222691557.7U CN218841863U (en) | 2022-10-13 | 2022-10-13 | Cascaded multilayer sewage treatment plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222691557.7U CN218841863U (en) | 2022-10-13 | 2022-10-13 | Cascaded multilayer sewage treatment plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218841863U true CN218841863U (en) | 2023-04-11 |
Family
ID=87306120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222691557.7U Expired - Fee Related CN218841863U (en) | 2022-10-13 | 2022-10-13 | Cascaded multilayer sewage treatment plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218841863U (en) |
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2022
- 2022-10-13 CN CN202222691557.7U patent/CN218841863U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20230411 |